The Factory of the World – Hackaday Documentary on the Shenzhen Ecosystem
When it comes to manufacturing, no place in the world has the same kind of allure as the Pearl River Delta region of China. Within just an hour-long train ride, two vastly different cultures co-exist, each with its unique appeal that keeps attracting engineers, entrepreneurs, and hustlers alike. On the mainland side, cities like Shenzhen and Guangzhou bring the promise of cheap components, low-cost contract work, and the street cred of “having done the Shenzhen thing.” And on the island, the capitalist utopia called Hong Kong glows with all of its high finance and stories of lavish expat lifestyles.
As …read more
Retro TO-3 Switching Voltage Regulator
Restoring old gear often means replacing unavailable parts with modern equivalents. [Alex Eisenhut] needed to replace some old TO-3 voltage regulators and decided to make an authentic-looking switching power supply replacement. These three pin metal cans were very common, especially the LM340 5V regulator which was, of course, a linear regulator. Today, you are more likely to see a 7805 in a TO-220 case or something surface mount for a comparable linear regulator.
As you might expect, the board uses surface mount components. [Alex] used Mill Max machine pins to match the original regulator footprint and calls the regulator Ton3y. …read more
[Federico Musto] of Arduino SRL Discusses Arduino Legal Situation
Recently we had the opportunity to sit down and interview Arduino SRL’s CEO, [Federico Musto], over a nice dinner. His company is one half of the Arduino vs Arduino debacle which has pitted Arduino.cc against Arduino.org in a battle over the trademark on “Arduino”.
Given the tremendous amount of press coverage of [Massimo Banzi] and the Arduino LLC side of the story (Arduino.cc), we were very interested in hearing how the whole situation looks where [Frederico Musto] sit (Arduino.org). In the end, we came away with what we feel is a more balanced and complete picture of the situation, as …read more
No, Mounting A Gun To A Quadcopter (Probably) Isn’t Illegal
Earlier this month, [Austin Haghwout] posted a video on YouTube of a remote controlled quadcopter armed with a semiautomatic handgun. While there are no details of this build, it’s safe to say any reasonably sized quadcopter could be armed in such a manner; just strap a pistol to the frame, add a servo, and connect the servo to the RC receiver. We don’t think this is the first time it’s been done, but has garnered the most attention.
There is nothing novel about mounting a handgun to a quadcopter. Anyone with any experience with RC flying could replicate this build, …read more
Police LiDAR Tear Down
Most police departments made a big switch from RADAR to LiDAR after consumers starting buying RADAR detectors. A lot of those LiDAR units are now out there on the surplus market. If you don’t have $500 or so to buy a LiDAR gun just to see what makes it tick, you are in luck. [Alexei Polkhanov] spent an hour tearing down a UltraLyte LTI 20-20 LR 100 so you don’t have to.
An hour seems like a lot for a tear down video, but [Alexei] speeds up through the boring parts, and spends a lot of time talking about the …read more